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Blossite
Blossite is an anhydrous copper vanadate mineral with the formula: Cu2+2V5+2O7.〔 Blossite was named for mineralogist Donald F. Bloss of Virginia Polytechnic Institute and State University.〔
==Natural and synthetic occurrence==
Blossite was first described for an occurrence in the “Y” fumarole 〔 in the summit crater of Izalco Volcano, El Salvador.〔 There it occurs with several high-temperature minerals including: stoiberite, fingerite, ziesite, and mcbirneyite.〔 The natural analogues of these compounds crystallize in the CuO-V2O5 binary system first studied by Brisi and Molinari (1958) and were first discovered as synthetic compounds. Blossite is the low temperature polymorph of ziesite, β-Cu2V2O7.〔 All of the blossite crystals identified to date are inter-grown 〔 with other fumarolic copper vanadates. The discovered location of these copper vanadates, in the outer sulfate zone of the fumarole, indicates a sublimation temperature between 100 °C and 200 °C.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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